package com.hafu.dao;

import com.hafu.model.GysInfo;
import com.hafu.util.DbUtil;
import com.hafu.util.StringUtil;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

public class GysInfoDao {
    public Boolean addGys(GysInfo gys)
    {
        String sql = "INSERT INTO gysinfo(name,tel) VALUES(?,?)";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setString(1, gys.getName());
            preparedStatement.setString(2, gys.getTel());
            //执行添加sql方法
            int i = preparedStatement.executeUpdate();
            if (i>0){
                System.out.println("添加成功");
                return true;
            }else return false;
        }catch (Exception throwables){
            throwables.printStackTrace();
        }
        return false;
    }
    //删除供应商信息
    public Boolean deleteGysInfo(int id)
    {
        String sql = "DELETE FROM gysinfo WHERE id=?";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setInt(1,id);
            //执行添加sql方法
            int i = preparedStatement.executeUpdate();
            if (i>0){
                System.out.println("删除成功");
                return true;
            }else return false;
        }catch (SQLException throwables){
            throwables.printStackTrace();
        }
        return false;
    }
     //修改供应商信息
    public Boolean updateGysInfo(GysInfo gys)
    {
        String sql = "UPDATE gysinfo SET name=?,tel=? WHERE id=?";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setString(1, gys.getName());
            preparedStatement.setString(2, gys.getTel());
            preparedStatement.setInt(3, gys.getId());
            //执行添加sql方法
            int i = preparedStatement.executeUpdate();
            if (i > 0) {
                System.out.println("修改成功");
                return true;
            } else return false;
        }catch (SQLException throwables){
            throwables.printStackTrace();
        }
        return false;
    }
    //查询供应商信息根据名字
    public ArrayList<GysInfo> getGysInfoByName(GysInfo gys)
    {
        ArrayList<GysInfo> list = new ArrayList<GysInfo>();
        String sql = "SELECT * FROM gysinfo";
        if (!StringUtil.isEmpty(gys.getName())){
            sql = sql+" WHERE name like '%"+gys.getName()+"%'";
        }
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            ResultSet resultSet = preparedStatement.executeQuery();
            while (resultSet.next()){
                int id = resultSet.getInt("id");
                String name = resultSet.getString("name");
                String tel = resultSet.getString("tel");
                GysInfo gysInfo = new GysInfo(id,name,tel);
                list.add(gysInfo);
            }
        }catch (SQLException throwables){
            throwables.printStackTrace();
        }
        return list;
    }
}
